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Generate Images with Pollinations & Blog Articles with Gemini 2.5 from Telegram

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Created by: Fahmi Oktafian || fahmi3322

Fahmi Oktafian

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Last update 21 hours ago

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This n8n workflow is a Telegram bot that allows users to either:

  • Generate AI images using Pollinations API, or
  • Generate blog articles using Gemini AI

Users simply type image your prompt or blog your title, and the bot responds with either an AI-generated image or article.

Who's it for

This template is ideal for:

  • Content creators and marketers who want to generate visual and written content quickly

  • Telegram bot developers looking for real-world AI integration

  • Educators or students automating content workflows

  • Anyone managing content pipelines using Google Sheets

What it does / How it works

Telegram Interaction

  • Trigger Telegram Message: Listens for new messages or button clicks via Telegram

  • Classify Telegram Input: JavaScript logic to classify input as /start, /help, normal text, or callback

  • Switch Input Type: Directs the flow based on the classification

Menu & Help

  • Send Main Menu to User: Shows "Generate Image", "Blog Article", "Help" options

  • Switch Callback Selection: Routes based on button pressed (image, blog, or help)

  • Send Help Instructions: Sends markdown instructions on how to use the bot

Input Validation

  • Validate Command Format: Ensures input starts with image or blog

  • Notify Invalid Input Format: If validation fails, informs user of correct format

Image Generator

  • Prompt User for Image Description
    → When user clicks Generate Image

  • Detect Text-Based Input Type
    → Detects if text is image or blog

  • Switch Text Command Type
    → Directs whether to generate image or article

  • Show Typing for Image Generation
    → Sends "uploading photo..." typing status

  • Build Image Generation URL
    → Constructs Pollinations API image URL from prompt

  • Download AI Image
    → Makes HTTP request to get the image

  • Send Image Result to Telegram
    → Sends image to user via Telegram

  • Log Image Prompt to Google Sheets
    → Logs prompt, image URL, date, and user ID

  • Upload Image to Google Drive
    → Saves image to Google Drive folder

Blog Article Generator

  • Prompt User for Blog Title
    → When user clicks Blog Article

  • Store Blog Prompt
    → Saves prompt for later use

  • Log Blog Prompt to Google Sheets
    → Writes title + user ID to Google Sheets

  • Send Article Style Options
    → Offers: Formal, Casual, or News style

  • Store Selected Article Style
    → Updates row with chosen style in Google Sheets

  • Fetch Last User Prompt
    → Finds the latest prompt submitted by this user

  • Extract Last Blog Prompt
    → Extracts row for use in AI request

  • Gemini Chat Wrapper
    → Handles input into LangChain node for AI processing

  • Generate Article with Gemini
    → Calls Gemini to create 3-paragraph blog post

  • Parse Gemini Response
    → Parses JSON string to extract title and content

  • Send Article to Telegram
    → Sends blog article result back to user

  • Log Final Article to Google Sheets
    → Updates row with final content and timestamp

Requirements

  • Telegram bot (via @BotFather)
  • Pollinations API (free and public endpoint)
  • Google Sheets & Drive (OAuth credential setup in n8n)
  • Google Gemini / PaLM API key via LangChain
  • Self-hosted or cloud n8n setup

Setup Instructions

  • Clone the workflow and import it into your n8n instance

  • Set credentials:

    • Telegram API
    • Google Sheets OAuth
    • Google Drive OAuth
    • Gemini (via LangChain)

  • Replace:

    • Sheet ID with your own Google Sheet
    • Folder ID on Google Drive
    • chat_id placeholders if needed (use expressions instead)

  • Deploy and send /start in your Telegram bot

🔧 Customization Tips

  • Edit the Gemini prompt to adjust article length or tone

  • Add extra style buttons like "SEO", "Story", "Academic"

  • Add image post-processing (e.g. compression, renaming)

  • Add error catching logic (e.g. if Pollinations image fails)

  • Store images with filenames based on timestamp/user

Security Considerations

  • Use n8n credentials for all tokens (Telegram, Gemini, Sheets, Drive)

  • Never hardcode your token inside HTTP nodes

  • Do not expose real Google Sheet or Drive links in shared version

  • Use Set node to collect all editable variables (like folder ID, sheet name)